Type-writing machine.



J. A. B. SMITH.

TYPE WR ITING MACHINE. APPLICATION FILEDAPR. a. 1914.

'PtentedSept. v 7, 1915.

Mws,

JESSE A. B. SMITH, OF NEW YORK, "1., ASSIGNOR T0 UNDER'W'OOT] TYPEWBITER COMPANY, OF NEW YORK, N. 11, A CORPORATION OF DELAYVARE.

TYPE-WRITING- MACHINE.

Speifieation of Letters Patent.

Patented se t. a rare.

' Application filed April 3, 1914. Serial No. 829,162.

To all whom it may concern Be it known that I, Jnssn A. B. SMITH, a citizen of the United States, residing in Brooklyn borough, in the county of Kings, city and State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

This invention relates to attachments for typewritin machines, particularly adapted to enable ills or other work forms to be .quickly and accurately placed in position on improved table or shelf located at the intro-- ductory side of the platen and extended to curve around the platen toward the printing line, the curved portion being spaced a slight distance from the platen to form a passageway between the guide and the platen through which a work member may be slipped and thus quickly brought to printing position. The work sheet or member may be held in position by a pressure roll or rolls, which, while the work form is being positioned, are held off the platen. The paper guide is provided with'side flangeswvhich serve as gages for the lateral edges of the work-sheets, said flanges also being curved around the platen and preferably projecting into peripheral grooves in the surface of the platen, whereby the attachment may be held against movement longitudinally of the platen, and may also be accurately spaced from the platen to provide a passageway for the work members.

Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure l is a sectional perspective view of an Underwood platen frame and platen with the attachment applied thereto. Fig. 2 is a perspective view of the attachment. Fig. 3 is a sectional end elevation View of the parts shown'in Fig. 1. Fig. 4 is a fragmentary plan view of the platen and attachment.

A roller platen 1 may be fixed to the platen axle 2 journaled in the ends 3 of the platen frame, the latter also comprising an inclined paper table or shelf 4; at the intake side of theplaten. Type-bars 5 operated by the usual mechanism are adapted to print on a work member at the front side of the platen.

The attachment by which the work forms are guided into position on the platen comprises an inclined shelf 6 which may be vplaced over the table 4, and the lower portion 7 of the shelf 6 is curved around the under surface of the platen, and extends upward with'its front edge 8 a short distance below the printing line. which may be formed integral with the shelf 6, serve as gages for the Work forms. The

I lower portions 10 of the flanges 9 are prefthe platen to provide a passageway 12 for the work members. The attachment may be formed from a single pieceof sheet metal. The entire workirig portion of the platen body is included or confined between said flanges; the portions of the original platen that are located beyond said flanges not be ing used.

A feed roll 13, which coiiperates with the platen to hold the work membersin position and feed them forward as the platen is rotated, may be lifted from the platen to permit the work members to be placed in position. Said feed roll may be carried on levers 14 mounted on a tie-rod 15 of the platen frame, said roll being yieldingly held against the platen by springs 16 secured to the rod 15. The roll 13 may be lifted from the platen by a finger-piece 17 which actuates a lever 18 connected through a link 19 to an arm 20 on a rock shaft 21 formed with flats or cam faces 22 which bear against the levers 14. When'the key 17 is depressed, the shaft 21 is rocked, and the roll thereby lifted from the platen. This releasing device is self-holding in released position.

The roll 13 may be returned to the platen by a slight upward pressure on the fingerpiece 17. The roll. may be located at a cutaway portion 23 placed centrally in the for-- ward end of the paper guide, the pressure roll being preferably directly beneath and a short distance from the printing point.

A pluralit of feed rolls might be employed, but a single roll centrally located has the advantage of involving a simpler construction, and also may serve to hold very narrow cards or work'members which .would be out of the range of rolls placed near the sides of the attachment.

It will be seen that the attachment is very simple in construction, and may be readily applied to standard machines without any material "alterations besides providing grooves in the platen. 1;

Variations may be resorted to withill the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. The combination with a rotary platen, of a. stationary guide for work members curved around the platen and spaced a short.

distance therefrom to permit a work member'to' be slipped into position between the platen and said guide, the platen being formed with an annular groove, and said guide formed with an extension to enter said groove. p

:2; The combination with a rotary platen,

of a stationary guide for work members curved around'the platen, flanges on said guide, and annular grooves in the platen into which said flanges project.

, '3. The'combination with a rotary platen of a stationary guide for work members curved around the platen, flanges on said guide, and annular grooves in the platen into which said flanges project, said flanges and grooves being of a relative de th to permit the flanges to bear against the, ottom of thegrooves and thereby space the guide from the platen.

4;. The combination with a rotary platen, of a stationary guide for work members, said guide curved around the platen, and means on said guide to extend inward within the outline of the printing surface of the platen and thereby position the work member.

5 In a typewriting machine, the combination with a rotary platen, of an attachmentcomprising an inclined flat shelf, and an extension curved to conform to the periphery meat-see of the platen, a flange on said curved por tion, and an annular recess or groove in the surface of the platen to receive said flange.

6. In a typewritin machine, the combination with a rotary p aten, of an attachment therefor comprising an inclined shelf, a curved extension of said shelf extending beneath the platen, side flanges on said shelf forming gages for a work member, curved flanges forming continuations of said side flanges, and annular grooves in the platen into which said flanges extend and by which the body portion of the attachment is spaced from the platen.

7. An attachment for a typewriting machine, comprising a flat body portion forming a table or shelf and a curved extension, and flanges along the side edges of said shell and extension, the flanges along the extension being arc-shaped to enter grooves in the platen of the machine.

8. The combination with a rotary platen, of a paper-guiding shelf 'in rear of the platen and having an extension-curvingforwardly around the under side of the pl'atkn and up in front thereof, and spaced from the platen, and opposite guiding flanges fixed upon said curved extension and extending inwardly therefrom, to position to prevent the paper from slipping between the guide flanges and the platen.

9, The combination with a rotary platen, of a paper-guiding shelf in rear of the platen and having an extension curving forwardly around the under side of the platen and up in front thereof, and spaced from the 'platen, and, opposite guiding flanges fixed upon said curved extension and extending inwardly therefrom, said platen having opposite edges overlapped by said flanges.

10. The combination with a rotary platen body, of a stationary work-sheet uidelate mounted at the introductory side 0 the platen and extending forwardly around the platen and up to about the printing line, and spaced from the platen to permit the .work-sheet to be slid between the platen and said guide-plate forwardly to position to be written upon; said guide-plate having fixed upon its opposite edges side guides for the work-sheet at the introductory side of the platen, said side guides also extending upon said plate along the portion thereof which extends around the platen, to guide the sheet edgcwise both at the introductory side of the platen and near the printing line.

11. The combination with a rotary platen body, of a stationary work-sheet guidelate mounted at the introductory s1de o the platen and extendin forwardly around the platen and up to a out the printing line, and spaced from the platen to permit the worksheet to be slid between the platen and said guide-plate forwardly to position to be Written upon; said guide-plate having fixed upon its opposite edges side guides for the Work-sheet at the introductory side of the platen, said side guides also extending upon said plate along the portion thereof which extends around the platen, to guide the sheet edgewise both at the introductory side of the platen and near the printing line; said platen body being confined by said side guides.

JESSE A. B. SMITH. Witnesses:

' TITUS H. IRoNs,

F. E. ALEXANDER. 

